Justin Bieber wins favorite pop/rock male artist then shouts out to the haters. Selena Gomez was NOT there sitting with him. 

Justin then performed "As Long As You Love Me" acoustic and "Beauty And A Beat" with Nicki Minaj

Taylor Swift performed 'I Know You Were Trouble' pretty good performance and a hint of dubstep

And...Then Pitbull....

Justin Bieber won "Artist Of The Year" and brought his mom up on stage with him

And then to close the show PSY....And MC HAMMER